diff --git a/generator.c b/generator.c
index c3a0742..7e9142a 100644
--- a/generator.c
+++ b/generator.c
@@ -170,10 +170,24 @@ void printGraph()
 	}
 }
 
-void putSolution(sem_t sUsedSpace, sem_t sFreeSpace, int *solution)
+void putSolution(sem_t sUsedSpace, sem_t sFreeSpace, sem_t sWriteEnd, int *solution)
 {
-	shared->data[shared->tail] = itemValue;
-	shared->tail = (shared->tail + 1) % MAX_ITEMS;
+	sem_wait(&sWriteEnd);
+	sem_wait(&sFreeSpace);
+
+	if (solution[0] == -1) {
+		shared->data[shared->tail] = -1;
+		shared->tail = (shared->tail + 1) % MAX_ITEMS;
+	}
+
+	int i = 0;
+	while (solution[i] != -1) {
+		shared->data[shared->tail] = solution[i];
+		shared->tail = (shared->tail + 1) % MAX_ITEMS;
+	}
+
+	sem_post(&sUsedSpace);
+	sem_post(&sWriteEnd);
 }
 
 void cleanup()